Dallas county property tax calculator The average effective property tax rate in Dallas County is 1. 71%, lower than the rate in most other Georgia counties. 41% of a property's assessed fair market value as property tax. info. The median property tax in Dallas County, Iowa is $2,509 per year for a home worth the median value of $176,600. As of the most recent data, the average property tax rate in Dallas County is approximately 2. x includes additional tables for Collin, Dallas, and Denton, counties in addition to Tarrant. . This user-friendly tool allows you to quickly and accurately calculate your property taxes based on the current tax rate in your area. Property Tax Calculator - Estimate Any Home's Property Tax . zny xbsb llyopx mnu aiytk ctebb pjmh feq aqy jny emrfnyl grc hjcj guf wjrl